Dometic CRX Series - Connecting to DC Voltage

EN
Installing and connecting the refrigerator CRX
22
7.6 Connecting the refrigerator to DC voltage
A
The refrigerator can be operated with a 12 V or a 24 V DC voltage supply.
For safety reasons, the refrigerator is equipped with an electronic system to prevent
the polarity being reversed. This protects the refrigerator against reversed polarity
when connecting to a battery and against short circuiting.
To protect the battery, the refrigerator switches off automatically if the voltage is
insufficient (see table below).
➤ Determine the required cross section of the cable in relation to the cable length
according to fig. d, page 9.
Key to fig. d, page 9:
A
➤ Before starting up the device for the first time, check whether the operating volt-
age and the battery voltage match (see type plate).
➤ Connect your refrigerator to a plug socket which is fuse-protected at 15 A (at
12 V) or 7.5 A (at 24 V) (fig. e 1, page 9).
➤ Connect the red cable (fig. e rd, page 9) to the positive terminal of the battery.
NOTICE!
• To avoid voltage drops and loss of performance, keep the
connection cable as short as possible and not be interrupted.
Therefore avoid additional switches, plugs or power strips.
• Disconnect the cooling device and other electric consumers from
the battery before you connect the battery to a quick charging
device. Overvoltage can damage the electronics of the device.
12 V 24 V
Cut-off voltage
10.4 V 22.8 V
Cut-in voltage
11.7 V 24.2 V
Coordinate axis Meaning Unit
l Cable length m
∅ Cable cross section mm²
NOTICE!
Make sure the polarity is correct.
CRX50-65-80-110-140-IO-US.book Seite 22 Dienstag, 3. Juli 2018 1:22 13